On January 3, Dong Ruichang, a tea cultivation expert from Nanjiang County Agriculture Bureau, told the farmers in the Yuanding Village of Heitan Township that the tea garden management technology emphasized that the early spring tea garden should be germinated.
In the early spring, the germination fertilizer should be applied. The application period is most appropriate for the early expansion period of the winter bud scales; after the spring tea is finished, the second three times of topdressing should be carried out separately. Fertilizers are applied to the top of the tea tree during the growing period, collectively referred to as tea garden topdressing. The role of topdressing in tea gardens is mainly to continuously supplement the nutrient requirements during the growth and development of tea trees to further promote new growth and achieve sustained high yield. It is usually carried out 3 to 4 times a year. In the place where the temperature is high, the rain is heavy, and the tea tree grows long, the fourth top dressing can be carried out.
The fertilization of tea leaves is not affected by factors such as soil erosion, leaching, and biological fixation. The fertilizer is economical to use, and the absorption is fast and the effect is good. At the same time, it can also be combined with measures such as pest control and artificial irrigation. The top dressing of the root should be considered for the application of trace elements, and the spraying concentration should be appropriate. The general concentration is 1% to 2% of ammonium sulfate, 0.5% to 1% of urea, 1% to 2% of superphosphate, 0.5% to 1% of potassium sulfate, 50ppm of zinc sulfate, and 0.01% of manganese sulfate. The spraying effect is best, 50-100 kg per mu of fertilizer. When spraying, spray the front and back of the blade at the same time, especially pay attention to the spray on the back. Generally, the back absorption capacity is more than 5 times higher than the front.
The fertilizer applied after the partial growth of the tea tree on the ground every year is called the tea garden base fertilizer. The tea garden base fertilizer mainly guarantees the nutrients required for the root system activities of the tea trees after winter, and provides nutrients for the germination of the spring tea. Generally, it is combined with deep tillage in September-November, and the famous tea production garden should be applied as early as possible. The amount of base fertilizer: The average annual acre of organic fertilizer is more than 750 kg, and the unit with conditions should increase 50-100 kg of cake fertilizer, 25 kg of superphosphate and 15 kg of potassium sulfate. Put into production tea plantation, the average annual application of organic fertilizer 1500 ~ 2500 kg, or cake fertilizer 100 ~ 150 kg, superphosphate 25 ~ 50 kg, potassium sulfate 15 ~ 25 kg. The base fertilizer should be applied deeply. The mature tea garden usually opens the fertilization ditch vertically at the edge of the tea bush. It can also be separated by ditching. The position is changed every year, the ditch depth is 20-30 cm; the young tea garden is applied according to the seedling point, and the fertilization point is The distance between the root and neck: 5 to 10 cm for a year or two, and 10 to 15 cm for three or four years. The depth is 15 to 25 cm.
This article URL: Early spring tea garden should be germinated
1000Hz High Frequency LiDAR System
JRT High Frequency Range LiDAR Sensor is 2021 new product, that's a low-cost tof sensor but High frequency (up to 1000Hz). With 5cm high accuracy, the LiDAR Module can measure 80m.
Why the 1000Hz High Frequency LiDAR System:
* Widely used in many industrial automation system, like, UAV, delivery van, anti-lock break system, construction automation,intelligent toy robots etc.
* Small size: 43*35*21mm, can be easily integrated
* Invisible laser design: the laser type is 905nm,Class I
* High Frequency: 1000hz/1khz
* Low power design
Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensor, Laser Distance Meter Module, Tof LiDAR Sensor.
lidar sensor,tof sensor,lidar system
Chengdu JRT Meter Technology Co., Ltd , https://www.rangesensors.com